Data/hora: 02/06/2024 00:24:16

Biblioteca(s): | Embrapa Gado de Leite.
Data corrente: | 17/12/2019
Data da última atualização: | 06/02/2024
Autoria: | RESENDE, L. de O.; MULLER, M. D.; KOHMANN, M. M.; PINTO, L. F. G.; CULLEN JUNIOR, L.; ZEN. S. de; REGO, L. F. G.
Afiliação: | LEONARDO DE OLIVEIRA RESENDE, PUC RIO; MARCELO DIAS MULLER, CNPGL; Marta Moura Kohmann, University of Florida, Ona, FL; Luís Fernando Guedes Pinto, Imaflora, Piracicaba, SP; Laury Cullen Junior, Institutto Ipê, Nazaré Paulista, SP; Sergio de Zen, PUC RIO; Luiz Felipe Guanaes Rego, PUC RIO.
Título: | Silvopastoral management of beef cattle production for neutralizing the environmental impact of enteric methane emission.
Ano de publicação: | 2020
Fonte/Imprenta: | Agroforestry Systems, v. 94, p. 893-903, 2020.
DOI: | https://doi.org/10.1007/s10457-019-00460-x
Idioma: | Inglês
Conteúdo: | It is well recognized that commercial beef cattle production systems have a major impact on climate change, mainly due to the emission of enteric methane (CH4). The objective of this research was to evaluate if integrating animal ? pasture ? timber production in silvopastoral systems (SPS) would help neutralize the impact of enteric CH4 emission by facilitating carbon storage as soil organic carbon (SOC). This paper reports a study conducted in Brazil with a herd of 150 cows in 100 ha of Urochloa brizantha with Eucalyptus urograndis, on four tree con&#64257;gurations:SPS1-clone GG-100at2 9 3 9 15 m spacing; SPS 2-clone i-144 at 2 9 3 9 15 m; SPS 3-clone GG-100 at 3 9 15 m; and SPS 4-clone i-144 at 3 9 15 m. Based on data collected through eight consecutive years, the gas balance was estimated. For all SPS treatments average, the carbon dioxide equivalent (CO2e) of additional C stock exceeded the emissions. Considering only C sequestration from trees, the average CO2e sequestration was - 26.27 MgCO2e ha -1, while the average emissions of CO2 e was 23.54 MgCO2e ha -1 for enteric CH4? pasture ? tree, giving a net balance of - 2.73 MgCO2e ha -1. The ??loss?? of CO2e analyzed was compensated by the soil C sequestration in longlived SOC pools, enhancing the resilience of farming systems by increasing soil organic matter and soil fertility capacity, mitigating greenhouse gas emissions, therefore, providing bene&#64257;ts in livestock production and for environmental remediation.
Palavras-Chave: | Cattle emissions; Greenhouse gases emission; Sustainable livestock.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Gado de Leite (CNPGL)
Exemplares: | CNPGL - (24882-1) - UPC - AP - DD -  -  -  - DIS